Ćw.409 : Wyznaczanie stężenia roztworu za pomocą kalorymetru
fotoelektrycznego.
i
1 11
..
:=
l
1 10
..
:=
k
1 3
..
:=
m
10
:=
n
1 m
..
:=
TABELA I
λ
i
480
490
500
510
520
530
540
550
560
570
580
:= E
i
0.6
0.65
0.73
0.79
0.75
0.65
0.48
0.33
0.215
0.14
0.095
:=
480
490
500
510
520
530
540
550
560
570
580
0
0.2
0.4
0.6
0.8
E
i
λ
i
TABELA II
c
l
45
40
35
30
25
20
15
10
5
:= E1
l
0.055
0.05
0.04
0.035
0.025
0.01
0.005
0.004
0.003
:= E2
l
0.06
0.055
0.04
0.03
0.02
0.01
0.006
0.004
0.004
:= E3
l
0.06
0.055
0.04
0.03
0.02
0.01
0.006
0.004
0.003
:= Esr
l
0.538
0.497
0.408
0.343
0.302
0.223
0.180
0.097
0.062
:=
Esr
l
E1
l
E2
l
+
E3
l
+
3
:=
a
slope c Esr
,
(
)
:=
b
intercept c Esr
,
(
)
:=
a
1.319
10
3
−
×
=
b
6.257
−
10
3
−
×
=
y
l
a c
l
⋅
b
+
:=
0
4.5
9
13.5
18
22.5
27
31.5
36
40.5
45
0.01
−
3
−
10
3
−
×
4 10
3
−
×
0.011
0.018
0.025
0.032
0.039
0.046
0.053
0.06
KRZYWA
Esr
l
y
l
c
l
1) Wyznaczenie stężenia
nieznanego roztworu:
2)Dyskusja błędów :
Ex
k
0.025
0.026
0.025
:=
∆a
m
m
2
+
1
m
n
Esr
n
( )
2
∑
=
a
1
m
n
c
n
Esr
n
⋅
(
)
∑
=
⋅
−
b
1
m
n
Esr
n
∑
=
⋅
−
m
1
m
n
c
n
( )
2
∑
=
⋅
1
m
n
c
n
∑
=
2
−
⋅
:=
∆b
1
m
n
c
n
( )
2
∑
=
1
m
⋅
∆a
⋅
:=
Ex
sr
k
Ex
k
∑
3
:=
c
x
Ex
sr
b
−
a
:=
Ex
sr
0.025
=
c
x
23.946
=
∆a
1.21
10
4
−
×
=
∆b
3.23
10
3
−
×
=